JPS596195Y2 - Sash bottom frame with window defrosting heater - Google Patents

Description

[Detailed description of the invention] This invention relates to a sash lower frame that can prevent fogging or condensation from forming on the glass surface or sash surface when there is a large temperature difference between indoors and outdoors.

Therefore, the present invention is suitable for use in building sashes in cold regions or rainy and humid regions.

In recent years, metal sashes made of aluminum, stainless steel, etc. are often used as window frames for houses or buildings, but these metal sashes have a high heat transmission coefficient, so they are difficult to use when there is a large temperature difference between indoors and outdoors. Especially during the cold season, cold air from outside passes through the window frame and reaches the indoor side, cooling the window surface on the indoor side, causing condensation of water vapor in the air.
Clouding or condensation occurs on the glass or sash surface, and this condensed moisture flows down and wets the wall, floor, or tatami surface.
It has the drawback of causing problems such as staining.

Furthermore, during indoor heating, there is a large heat loss from the window surface, so there is also a drawback that a localized cold temperature region is generated near the window.

Here, the present invention was made with the aim of eliminating the above-mentioned drawbacks, and in particular, a defrost heating device equipped with a hot air outlet is integrally installed at the lower part of the indoor side of the sash window. When fogging or condensation occurs on the window surface, the device generates warm air to remove the fogging or condensation on the window surface, and also cools the cold area near the window with the temperature. The purpose of this project was to propose a sash bottom frame that can be heated by wind to maintain a comfortable temperature throughout the room.

The present invention will now be explained in detail based on examples.

In FIGS. 1 and 2, 2 shows the sash lower frame, 3 shows the shoji screen, and 4 shows the glass of the shoji screen.

Reference numeral 5 denotes a defrost heating device integrally formed on the indoor side rising wall of the sash lower frame 2.

As an example, this device houses a hot air generator in a horizontally long case formed by a fixed frame 6 protruding from a support leg portion of a lower frame 2 and a cover 7 that is detachable from the fixed frame. This hot air generator is composed of a fan 8 disposed approximately in the center of the case, a motor 9 that drives this fan, and a heater 10 held above the fan 8. being intimidated.

A nozzle 11 is provided on the upper surface of the case to direct hot air generated from a hot air generator, and an air outlet 12 at the tip of the nozzle is arranged along the width direction of the sash window.

Incidentally, reference numeral 13 is a flexible bellows provided on the nozzle, which adjusts the angle of the outlet 12 and the direction of the hot air blown out.

Reference numeral 14 denotes an indoor heating ventilation hole formed on the top surface of the case, through which warm air generated from the hot air generator blows out.

Reference numeral 15 denotes a shutter slidably attached to the lower surface of the ventilation hole, and this shutter has knob 1 [and ventilation hole 1].
7 is integrally formed, and this knob is used to align the ventilation hole 17 of the shutter with the ventilation hole 14 on the top surface of the case.

When both ventilation holes 14.17 are aligned (see Fig. 2A), hot air blows out from inside the case through these ventilation holes, and conversely, when the positions of the ventilation holes 14.17 are shifted from each other (see Figure 2A), warm air blows out from inside the case through these ventilation holes. (See Figure 2B), the ventilation holes on the top of the case are shut off and hot air stops blowing out.

Reference numeral 18 indicates intake holes formed on both sides of the case.

Although not shown, a switch for operating the heating device is provided on the front of the case, and the switch is used to start and stop the device, adjust the amount of heat and air flow, etc.

The above-mentioned heating device can be configured so that the amount of heat generated can be changed as appropriate, and it is preferable to adjust the amount of hot air in proportion to the size of the window surface.

Proceeding to explain the ventilation hole opening/closing device shown in FIGS. 3A and 3B, reference numeral 20 is a louver rotatably attached to the upper surface of the case, 21 is an operating rod of the louver, and when the operating rod is moved from side to side, The louver rotates to open the ventilation hole 14.
The opening degree is adjusted.

Although not shown in the drawings, a structure may also be used in which hot air is blown out from the bottom surface of the case.

According to the present invention constructed as described above, when fogging or condensation occurs on the indoor surface of the sash window due to moisture during winter or a rainy and humid season, the heater 5 is activated to blow warm air at an appropriate temperature. The air is blown out from the air outlet 12 of the nozzle 11, thereby evaporating and removing fogging and condensed water on the window surface, so there is no need to take waterproof measures for the floor, wall, or tatami surface.

In addition, when the outside air temperature becomes particularly cold and the heat inside the room escapes through the window surface, creating a cold area near the window, the ventilation holes 14 are opened to warm the cold area and bring the entire room into a comfortable temperature state. The heating effect is also excellent.

Further, in the present invention, the heating device 5 is particularly integrated with the sash lower frame 2, so there is no need to separately install a heating device, and therefore, a small space can be used effectively.

Furthermore, according to the present invention, not only can the heater be installed in the position with the best defrosting efficiency, but there is no need to align the heater with the sash, so installation work is easy.Moreover, the heater is integrated into the bottom frame of the sash. It looks good because it is built into the
Furthermore, since the lower frame is reinforced by the case that constitutes the heater, there is the advantage that the frame strength is excellent.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view showing the lower frame of the sash according to the present invention;
Figures A and B are end views of the heater portion of Figure 1, showing the opening and closing states of the ventilation holes. FIGS. 3A and 3B are explanatory diagrams showing an example of a ventilation hole opening/closing mechanism that can be used in this device. 2: Sash bottom frame, 3: Shoji, 4: Glass, 5: Defrost heater, 6: Fixed frame, 7: Cover, 8: Fan, 9
: Motor, 10: Heater, 11: Nozzle, 12: Air outlet, 13: Bellows, 14: Ventilation hole, 14: Shutter, 1
6: Knob, 18: Intake hole, 20: Louver, 21: Operation rod.

Claims (3)

[Scope of utility model registration request] 1. A case containing a hot air generator consisting of a fan, a motor, a heater, etc. is integrally formed on the rising wall on the indoor side of the lower frame of the sash, and the hot air generated by the hot air generator is blown out onto the upper surface of the case. 1. A sash lower frame with a window defrosting heater, characterized in that the case has an air outlet along the width direction of the sash window, and the case has intake holes and ventilation holes that can be opened and closed. 2. A sash lower frame with a window defrosting heater as claimed in claim 1, wherein the hot air outlet is adjustable in blowing angle. 3. A sash lower frame with a window defrosting heater according to claim 1, wherein the hot air generator is configured to be able to adjust the amount of heat generated and the amount of air.